Practical breeding cattle and sheep technology (2)
Food Ingredients,Food Additives Ingredients,Natural Sweetener Food Ingredients,Nutritional Food Ingredients Nanjing Sunshine Biotech Co., Ltd , http://www.sunshine-bio.com
(5) Youth cows Young cattle have a certain ability to adapt to external environmental conditions as they are trained and exercised at the calf stage, so this stage is easier to raise and manage. By using rough fodder as the main component, grasping grazing well, and doing day-to-day management work, young cattle can be guaranteed to grow healthily. (f) fattening cattle 1. The implementation of cattle bed breeding: cattle rearing cattle breeding positioning, is conducive to feed forage and health management, while avoiding the waste of grass, is the commercial cattle production must adopt the way. The size of the cattle bed is 1.6 meters long and 1.1 meters wide; the buffalo bed is 1.8 meters long and 1.2 meters wide. Adjacent cow beds are separated by columns, ensuring that each cow has a column and does not affect each other. The arrangement of the cow beds can be based on the condition of the cowshed and can be arranged in a single row (that is, a horizontal row) or in a double row (that is, one row on each side, and a 1.2-1.5 meter corridor in the middle, which facilitates the transport of feed). 2. The fattening cattle are generally fed mainly, therefore, must fully consider the diversity and nutrition of the feed, according to the situation, do a good job feed formulation. The amount of raw material for a cow’s solar eclipse is generally 3 kg per 100 kg of bovine body weight. The concentrate is calculated based on 1% to 1.3% of the body weight of the bovine, and green feed is not limited. The concentrate can be used with 30% of corn, 25% of wheat bran, 40% of corn flour, 4% of soybean meal, and 1% of mineral additive. In practice, visual situations need to be flexible. 3. Prepare enough forage and calculate the daily feed intake for cattle. Prepare all kinds of forage. Including green hay, ammoniated material, silage, fine material and so on. 4. Short ropes are raised. When bred, the short rope is tied to the column and it is restricted to move within a certain range. It can only stand up and feed on the grass. After eating, it lies down and rests, and cannot be turned back and forth. 5. Feeding times: Feeding three times a day, ie 8 in the morning, 12 in the afternoon, and 6 in the evening. Grazing conditions can be grazing in the early morning and late afternoon, supplementing ammoniated straw and fine material at noon, or grazing all day, and feeding at night. 6. Give enough water: especially for feeding, provide enough drinking water. Insufficient drinking water will not only affect cattle's feeding and digestion of feed, but also make things worse. It will also cause diseases such as bovine burning (louver) disease. Caused death. 7. Pay attention to doing a good job of environmental sanitation, the cowshed should be kept ventilated, cool in winter and cool in summer. At the same time, it should always be cleaned and kept dry and clean. 8. Timely slaughter. When young cattle fattening reaches the peak of cattle growth (usually 15-17 months of age), they should be quickly marketed. The old waste cows are fattened. When the cows reach the full height (usually 1.5-2 months), they should be put on the market in time to prevent waste of fodder and feeding time. It is recommended that local yellow (water) cattle be used as female parent and cold-mixed crossbreeds of Simmental, Short-horned cattle and Indian Mora buffalo be used for mass production of mass-produced hybrid cattle with fast growth speed, large body size and good meat quality. Increase the meat yield of cattle. It was determined that the birth weight of hybrid cattle increased by about 40% over that of local cattle, the growth rate increased by 45%, and the slaughter rate was about 10% higher. (g) Feeding and management of goats Goats have different growth and development at different times. The rapid growth before June, and the rapid increase in body weight, is the peak of the goat's growth, especially in the first month of age. At the same time, the growth rate of body measurements exceeds weight gain. After the age of six months, the goat's growth gradually slowed down and its speed decreased. At the age of one and a half years, weight growth stagnated and deposition of fat dominated. Rams gain significantly faster than ewes. According to this law, in the peak period of goat growth, management should be strengthened, adequate grazing and supplementary feeding should be provided to provide higher nutrition levels and promote rapid growth of goats. For lambs that are not used for seedlings, they must be castrated and fattened as early as possible, and they should all be slaughtered before the age of one. If feeding is delayed, the growth slows down and the feed is wasted, and the production efficiency is significantly reduced. 2. Grazing grazing of goats and points for attention: (1) Grazing season and time: Forage growth and climatic environment vary from season to season, so their grazing management should also be different. In the spring (3-May), after wintering, the goats have poor body and weak constitution and need to increase the supply of nutrients. Natural grassland grass just germinated, and the feed is not green and the temperature is variable. It is a difficult period for raising sheep. Grazing in spring should choose suitable grassland and supplement it with reasonable feeding so that goats can quickly recover their physical strength and promote health. When grazing, pay attention to the gradual transition from eating grass to eating grass, grazing time from 4-6 hours a day gradually extended in early spring should not be grazing prematurely, to prevent goats from eating too much grass and water and cause swelling, diarrhea or grass disease. Summer (May-June): Forage grass turns prosperous, is an opportunity for the flock to greed for a long time, but the weather is hot and rainy, and it is easy to affect growth. Choose cool, ventilated, shady, convenient mountain grazing. The main point is to extend the grazing time as much as possible, grazing in the early morning, returning to the pasture in the evening, and resting in ventilated shade or arbor at noon to prevent sunstroke and heatstroke. In hot summer, sufficient water should be provided, and salt must be added to dissolve drinking water. Feed the sheep, after returning to herds, allow the sheep to rest for a while and then give drinking water to prevent the goats from drinking too much water too quickly and catch the lungs. The summer grazing should be no less than 10 hours a day, allowing the sheep to eat more grass and grazing through the summer. Goat carcasses require more than 80%. Autumn (September-October): The climate turns cold, pastures are at flowering and seeding stage, and the nutritional value is high. At this time, grazing can increase weight quickly. The body should reach more than ten percent to prepare for safe winter crossing. "The summer catches the meat and picks up the oil in the autumn, and it doesn't have to be choked in winter and spring." Early grazing in the early fall should be carried out early and late to increase goat feeding time. In the autumn, the early frost begins to fall, and it is necessary to prevent frosty grasses from eating in the morning. Late in the morning, late in the afternoon, and no rest in the afternoon. Grazing in the fall should be about 10 hours a day. During the winter (December-February): Forage grass is rough and yellow, nutrition value and palatability are reduced, plus the climate is cold, the grazing time should be appropriately reduced, suitable for 4-5 hours according to the weather grazing time, and choose sheltered sunny, high dry terrain , Grazing on the well-paved foothills and the sunken slopes of the sunny slopes, insisting on late exits and preventing dew-grass and frost grasses. Moreover, grazing must be combined with supplementary feeding in order to achieve the purpose of protecting the fetus. (2) Training of head sheep: Sheep are gregarious and easy to train. Therefore, it is important to train good sheep, which is the key to training herding sheep. The head sheep must choose to be bold, healthy, and responsive, and usually like to go to the front of the young ewes or rams to graze. When tuning, a name is given according to the characteristics of the head sheep, and training is emphasized. You can often collect sheep's favorite weed grass twigs, lead the head sheep in front of the sheep, and walk and feed and call the sheep's name for training. After a period of time, the head sheep will understand the person's intentions and lead the sheep forward. The grazing authorities often establish the authority of the mutton sheep. If other sheep are found looting ahead of the sheep, they should not be allowed to advance. When other sheep fight with the mutton sheep, they should help the rams to win the rams. Good sheep training can facilitate grazing management. Grazing grazing training should be forced first. During training, certain audible signals (such as whistle, etc.) can be used to direct the activities of the sheep. The sheep soon form conditional reflexes and follows the head's intentions to follow the movement of the head sheep. (3) Dealing with the relationship between forest and animal husbandry, goats have the characteristics of feeding on the young leaves of trees, and the forest land is grazing. The management and training of the sheep should be strengthened to prevent the sheep from damaging the trees. In particular, young plants below 1.5 meters in height should not be suitable. grazing. (4) Reasonable use of pastures, division of rotational grazing: The so-called zoning rotational grazing is to divide the pasture into several plots and separate them. Each plot is continuously grazing for 5-7 days, and no more than 7 days. After 2 months, it was again the first district to grazing and feeding. But also according to different circumstances rotational grazing. Small slopes, ravines, rivers, etc. can be divided into communities based on natural barriers such as rivers, mountains, and ridges, and recycled in order. (5) Feed salt and drinking water: Drinking water and feeding salt are very important in grazing. Goat drinking water can be determined according to the grazing season, temperature, humidity and the moisture content of the grass. Normally drinking water two or three times a day in summer, the temperature can be increased in an appropriate amount, and water can be used once a day in other seasons. When feeding dry feed, feed water should be added. Drinking water must be clean and sanitary to prevent drinking dirty water, sewage or dead water. Feeding salt is mainly to increase appetite and promote digestion. Long-term lack of salt, goats have reduced appetite, slow growth, malnutrition, and decreased productivity. According to the information, the goats' salt-feeding rate increased by 30% compared to the non-feeding salt. The rams only need to feed 5-8 grams of salt per day, 10-15 grams of nursing ewes, and other sheep, each feeding 10 grams of salt each day. (6) Promoting morning grazing: The so-called herding is grazing in the morning. Studies have shown that goats have the strongest appetite and ability to eat in the morning and early evening. Morning and evening are the two key moments for goat grazing. For example, when goats graze at noon, the grazing time is too short, and the sheep do not eat enough food to meet the nutritional needs, which results in the slow growth of goats. Therefore, in the proper season, we must carry out the morning grazing so that we can grazing in the morning and return to the grazing in the evening to extend the grazing time and promote the growth of goats. 3. Feeding and management of rams (1) Breeding of rams: The main task of breeding rams is to ensure their energetic, sexual desire, excellent semen quality, and moderate carcass. After the rams came into the spring, sexual desire continued to increase. Therefore, when raising appetite in the spring, you should extend the grazing time as much as possible so that the rams can eat a lot of pastures: strive to achieve full carcass before summer. In summer and autumn, the rams gradually enter the season of high seasons. At this time, they should be properly supplemented with a good mix of protein, vitamins, minerals, and hay. Breeding season or non-breeding period, mainly grazing and rearing, can not make up the fine material or less supplement fine material, but the nutritional level can not be too low. In short, the breeding of rams should be constantly adjusted according to the carcass feeding level, so that the rams have long-term good carcass and strong breeding ability. (2) Management and use of rams: The rams should be grazing alone and not mixed with ewes. In order to avoid causing premature allocation, it causes inbreeding. When grazing, stumps should be prevented from scratching the scrotum. When feeding, exercise should be more than 6 hours a day. The rams are bred 1-2 times a day, and they can be bred three to four times during the peak season, and they should rest for 1 day after two days. Young rams are initially allocated to 6-8 months of age and are bred within 2 times per day. Premature over-frequently affects the growth and development. In order to increase utilization of rams, artificial insemination should be actively promoted. 4. Breeding of female ewes Feeding sheep Management of ewes is the basis for the development of the flock and should be based on the physiological stages of the ewe. (1) feeding and management of ewes during empty period. After weaning, the nursing ewes have poor physique, and must strengthen feeding and management, fully grazing, so that they can quickly recover the conditions and promote normal estrus. Short-term excellent feeding can be carried out before the empty ewes are bred, so that the ewe can achieve the desired body condition for breeding, and strive to breed and feed the elk. The ejaculate does not need short-term excellent feeding. The short-term superior feeding method: 10-15 days before mating, the ewes supplement 0.2 kg of concentrate, supplemented with appropriate amount of carrots or vitamins, so that the ewes can be concentrated relative to lambs, and produce more lambs. (2) Feeding sheep for pregnant ewes: Pregnant ewes need nutrients in addition to their own needs, but also to provide nutritional needs for the growth of the fetus, therefore, to improve the nutritional level of pregnant ewes. During the first trimester of pregnancy, the fetus develops slowly. At this stage, except for short-term excellent feeding 7-10 days after mating, the remaining nutrient levels are almost the same as those before mating. However, it requires more comprehensive nutrition, feeding should be fully grazing, individual ewe can be properly fed. During the second trimester of pregnancy, the fetus develops rapidly and grows faster. The ewes need large amounts of nutrients for fetal growth and milk preparation. The nutritional standard should be 30 to 40% higher than usual. Digestible protein should increase 40 to 60%, calcium and phosphorus need to increase 1-2 times. The late feeding and management of pregnant ewes should also pay attention to the following points: First, choose a high-quality flat grassland to grazing, and prevent them from going too far to avoid fatigue. When feeding, they should exercise properly to promote appetite, which is conducive to fetal development and lambing. Second, do not feed on corrupt, moldy feed or easily fermentable silage, and avoid eating frost and cold grass when grazing. Do not drink ice water and sewage; the third is to prevent driving, beating the flock, to avoid crowding and fighting, to prevent abortion. One month before childbirth, the best one-column care is provided. (3) Management of feeding sheep for suckling ewes: Feeding management must be carried out according to the ewes' lactation at this stage of feeding. Maternal lactation lactation pattern: the ewes began to lactating postpartum lactation, milk production will gradually increase, generally 5-10 days after childbirth to enter the peak, and maintain 20-30 days, then gradually decreased. Feeding suckling ewes must take appropriate measures based on this pattern. In the first few days after delivery, the ewes are more complex in their physical condition, showing poor health and poor digestive ability. They must strengthen nursing care and give priority to feeding. They use high quality tender grass and hay as their main feed, giving 3-4 a day. Clean your drinking water and add a small amount of salt, bran, or rice and rice bran to your drinking water. And according to the ewes fat, breast swelling, appetite performance and other flexible feeding. Such as soy milk, rice milk, bean dregs, etc., about 0.5 kg per day, or make up the right amount of fine material. The ewes have good body condition, with less lambs and enough milk to make no supplements or less supplements. Management of nursing ewes: should pay attention to keeping the pens dry, clean, and do regular defecation, disinfection; do not grazing in bushes, thorns, so as not to hurt the breasts; nursing ewes because of large intake, often out of the group When eating, grazing should prevent the loss of lambs. 5. The cultivation of lambs by lambs is an effective measure to increase the survival rate of lambs and to maximize the growth rate. Raising a good lamb should focus on the following tasks. (1) In time to eat colostrum: The milk of the ewes for 3 to 5 days after delivery is colostrum, which has high nutritional value and is beneficial to the excretion of meconium and feces. It can prevent diseases of the lamb. Lambs should be fed colostrum within one hour of maternity in order to improve the resistance of the lambs. For lambs whose ewes are short of milk or lose ewes, they must try to get colostrum from other ewes. (2) Eat regular milk: After 5 days, the milk is regular milk, and the lambs within one month are mainly suckling milk. Only by ensuring that the ewes have enough milk to ensure the healthy development of the lamb. If the milk is insufficient, the feeding and management of the ewes must be strengthened. The concentrate and green and blue succulent feeds can be supplemented. At the same time, pharmacological prolactin can be performed. The ewes can be used for lactation: 15 grams of Vaccaria, 15 grams of pangolins and 10 grams of grass. Angelica 8 grams, Astragalus 8 grams. Lamb-deficient lambs can be fed with milk powder or fresh milk, but they can also find other ewes to replace milk. At the same time, they can induce lambs to feed and feed early to promote early weaning of lambs. (3) The traditional weaning time of the early weaning goats is 2-4 months. If lambs are reared with early supplementation, the lambs can be safely weaned at 30-45 days of age. Lamb early weaning, in addition to promoting the development of lambs, to speed up the growth rate, more importantly, greatly reduces the breeding cycle of ewe. This is an important technical measure to ensure that the ewes produce two babies each year. Lambs should train feed intake early during lactation, which is an important prerequisite for the early weaning of lambs. Lambs are usually grazing with the ewes about a week after birth. After 10 days of age, young green grass should be trained to exercise gastrointestinal function. Specifically, young grass or hay can be tied up with a rope at a suitable height or placed in a straw frame for lambs to feed, or they can be chopped and placed in a feed trough to feed sheep. At the age of 15 to 20 days, the concentrate can be fed in an appropriate amount, with 1% salt and bone meal added, and trace element additives. At first, the lambs did not adapt to the condiments. They should first use some of the fine ingredients to maintain a certain fragrance so as to change the palatability of the concentrates and improve the lambs' ability to feed concentrates. When fed, quantitative water can be used to adjust to a semi-dry state. Feed the sheep individually in the trough or mix with the chopped hay to feed the sheep. Daily supplementation of 20-day-old lamb 20-30 grams, 50 grams of 30 days, 40 days of 100 grams, 150 grams of 2 months, 250 grams of 3 months. Lamb feeding in the early period, the feed should be used in a variety of ways, and less attention should be paid to the ground. The combination of diets can be determined according to the local feed conditions. With the increase of lambs and the increase of feeding ability, the number of breast-feeding should be gradually reduced. Normally, weaning can be completed completely by the age of 30 to 40 days, which is shortened by 20 to 30 days compared with the traditional 2-month-old weaning. Lambs after early weaning should be grouped individually, grazing on the best grassland, and continue to supplement concentrates. (4) Strengthen the movement to enhance the body quality of lambs The post-partum lambs should go as far as possible to grazing in the wild. Sheep houses can be made of bricks, stones or wood to make them high, allowing them to climb to increase their exercise capacity and enhance the body of the lamb. (5) Deworming: Lambs are infected with parasites more than 40 days old. Therefore, it is also an effective measure to improve the survival rate of lambs for lambs before and after 2 months of age. The sheep can be fed with sulfur bischlorodichlorophenol or agrimony, once a day for 4 days. (6) Cold and moisture, ventilation and warmth: The lambs have weak resistance. Therefore, the lambs should be kept dry, clean, ventilated, warm in winter and cool in summer, and create a comfortable and quiet breeding environment for lambs. 6. Goat's fattening mutton is one of the important products produced by goats. All sheep that are eliminated and lambs that are not used for breeding should be fattened to increase the slaughter rate and increase lamb production. Preparation before fattening (1) Cluster: Weaning lambs that are not used for seeding and adult sheep that are eliminated should be all fattened. They were reared in groups of different size and strength. (2) Shelter and equipment: Goat fattening should include sheep beds, feeding troughs, drinking troughs and straw racks. The fattening barn needs to control a certain temperature. In winter, the temperature in the house is required to be above 8°C; in summer, the temperature should not exceed 25°C and ventilation must be kept cool. If the temperature is too low, the weight gain will be affected, the temperature will be too high, and the appetite of goats will decline, which will also affect the fattening effect. The fattening sheep house is required to be clean, dry, and the light is a little darker, and the sport should be limited appropriately, which will help to speed up the weight gain. (3) Deworming: Parasites have a great influence on the fattening effect of goats. All goats should be dewormed once before fattening to completely eliminate goat parasites. (4) Castration: Rams that are preparing for fattening must castrate. After the deprivation, the ram is a mutton sheep. Its temperament is docile, easy to manage, easy to fatten, and the mutton is of good quality, tender meat and less savory. The methods of castration can be used as follows: Ligation: Suitable for 1-3 weeks old male lambs. The testicles are squeezed tightly at the bottom of the scrotum, and the sperm cord is ligated at a distance of 2-4 cm from the abdomen with a sterile rubber ring (available in bicycles). The tighter the better. After about 20 to 30 days, the scrotum and testicles are dry and naturally fall off. This method is simple, safe and effective. Throughout the entire process, there was little change in lamb intake. Individuals have reduced their intake within a few days after treatment and soon return to normal. The effective rate of castration is 100%. Knife cutting method: Use a scalpel to remove the ram's testicles. One to two people raised the hindquarters or the side of Baoding, and the abdomen exposed the scrotum to the surgeon. Hold the scrotum with one hand and fix the testis. After the other hand, disinfect the testis with alcohol, cut one side of the scrotum in the lower third of the testicle, squeez out the testis and separate the spermatic cord from the cremaster muscle. Le few times, pull off the spermatic cord, remove the testicles, remove the other side of the testis with the same method, sprinkle with anti-inflammatory powder. If the weight is larger, to prevent m. Postoperative spermatic cord ligation must be performed. (5) Feeds For goat fattening, sufficient feed must be prepared. There are many types of goat fattening feeds, which can be selected according to local resources. General requirements have sufficient grazing land. Or store enough ammoniated feed, silage, mixed concentrates and other feeds. Appropriate fattening time and age: The best fattening age of goats is within 5-9 months of age, and the fattening time is generally 3-4 months. Adult fattening out of goats is mainly to increase body fat. The fattening time can range from 40 to 60 days and the body can be slaughtered. Fattening methods: Goat fattening methods are often grazing for adult sheep, fattening and lamb fattening. (1) Grazing and fattening: Grazing goats using Grassy Grass is one of the most economical and commonly used methods, and it is usually suitable for the elimination of goats for fattening. Grazing should be selected grassland with high grass yield and good grass quality, and extend the grazing time as much as possible. Daily grazing should not be less than 10-12 hours, and eat at least three full meals per day. During grazing, attention must also be paid to drinking goats and supplementing salt. (2) Feeding and fattening: Fattening can be done by the way of feeding in the dry season or where pastures are restricted. Feeds for fattening include various fine hay, ammoniated feeds, silage, roots and stems, processing by-products (sugar slag, bagasse, bean cakes, bean dregs, etc.) as well as mixed concentrates and powdery coarse materials. Ammonium fodder fattening method: Ammoniated fodder fattening goats is a new technology for raising sheep that has been developed in recent years. Ammoniad feeds are commonly used: ammoniated straw, grass powder and so on. The following technical points should be mastered when feeding ammoniated feeds. First, diets can be used with the following combinations: 50% for ammoniated feeds, 30% for silage or other juicy feeds, 15% for dry roughage, and 5% for mixed concentrates. The above dietary composition is suitable for adding a small amount of trace element additives and vitamins. The second is feeding method: Ammonium fodder feed sheep, first of all to feed training, in order to improve the goat's ability to feed ammoniated feed. The training method is to use a small amount of ammoniated feed mixed with hay or silage, and mix the sheep with appropriate amount of feed to gradually increase the proportion of ammoniated feed. After about 7-10 days, the goats can get used to eating. Various feeds. When feeding, the dry roughage should be shortened first, mixed with the ammoniated feed to be fed into the feeding tank to feed the sheep, and when the goats eat 7-80% full, silage and concentrates should be added to promote Eating. Third, the number of feeding: usually 3 times during the day, 1 at night, 4 times a day feeding. The fourth is to provide goats with sufficient drinking water. Ammoniated feed fattening, must pay attention to the following two points: A. Lambs less than 3 months old have poor abilities to use inorganic ammonia and should not use ammoniated fattening; B. Goats are not accustomed to feeding ammoniated feed. When training for feeding, it is easier to get used to feeding sheep when they are hungry or half-starved. Silage fattening method: This is a goat fattening technique based on silage. The fattening effect of fattening is obvious. The majority of sheep raising households should actively promote and apply it. Silage is a kind of acidic and juicy feed with a laxative effect. When feeding, it should not be excessive. The maximum daily feed for goats is 2-3 kg for adult goats and 1.5-2.0 kg for young goats. Silage can be mixed with green leather and concentrate to feed sheep, and try to avoid feeding alone. When the silage quality is good, less concentrate can be fed, but the supply of quality hay should be met. If you can mix sheep with ammoniated feed, you will get better weight gain. 7. The main measures for safe wintering of goats (1) Effectively grasping the safety of the sheep in summer and autumn, wintering and crossing the spring, is the key. Before winter, during the vigorous summer and autumn of pasture, we must fully grazing, let the sheep eat enough to drink, and do everything we can to grasp the sheep. (2) Storage of adequate fodder reserves Fodder for forage is an important material security for goats during winter. According to the nutritional needs and feed intake of goats, an adult goat needs dry forage 90-150 kg for one winter, 60-90 kg for silage, 10-15 kg for fine material, and can be grazing in some places in winter. Can be reduced appropriately. (3) Do a good job in the elimination of the flocks, and rectify the flock. After summer and autumn grazing, most of the fattened people will grow strong. If the carcasses are still very thin and weak, they must be eliminated before wintering. For meat sheep that have reached the slaughter requirements, All slaughter should be carried out. The breeding goats that have lost their breeding value should also be eliminated in time to reduce the burden of wintering as much as possible. (4) The deworming and supplemental feeding of goats have poor nutrition in winter, and the resistance is reduced, and parasites have great influence on them. Therefore, overwintering herds should be combined with sulfodichlorophenol plus levamisole in mid-late and late November. And according to age, weight, gender, etc. grouping, pregnant ewes according to the length of pregnancy group, according to different circumstances of grazing management, reasonable feeding, for the weak lamb, late pregnancy and lactating sheep to focus on feeding. Supplementary feeding should be done in a timely manner. Do not make supplements when the lamb is very poor. This will affect the feeding effect. (5) Cold and warm winter sheep house must be dry and warm to prevent thieves from invading. “Warm circle warmth†The warmth of the sheep house can reduce the consumption of thermal energy of the sheep body, which is conducive to protecting the body, maintaining strength, and reducing disease. If the warmth is not good, and the temperature in the house is too low, the sheep will soon lose weight and lose weight, and the resistance will decline. Suddenly encountering harmful factors will easily lead to disease and death. It can be seen that keeping warm in winter is very important.